Mono Sound

Hello guys. Interesting problem today, all of a sudden on my way home from work the left speaker on my headset went poof. I figured the headset broke suddenly. So I arrived home to try them on my old iphone but alas they worked. So I tried the headset that came with my original iphone on my new iphone 3g and there is no sound from the left channel. I performed a reset on the 3g phone and tried it again, nothing. I have even performed a reset on the 3g iphone and the issue persist. I have not yet even dropped the phone and this happens? I also have tried reinserting the headset several times like on the original iphone to try to get it to work but alas, nothing. So for now this new phone is in mono sound. This issue is with all operations such as ipod feature and phone feature.

I have the same problem on a iPhone 2G with 2.1. No sound in the left channel when using headset. I have tried many different headsets but problem remains.
I have tried restarting the phone, changing the settings back and forth, and plugging headset in and out many times.
I have not yet tried to reset the iphone, but i will have to try that soon if i don't find a better solution.

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Mono sound only

This is a really annoying problem: I only get mono sound with my headphone jack - the builtin laptop speakers are doing fine, though. I had this problem a few days ago, I asked for help in another forum but right after that (after a reboot) it worked again. After I used jack server for a while I noticed that there was mono sound only again, system-wide, and it couldn't be fixed with a reboot. I think I should mention that I had the same problem on ubuntu before (about 5 days ago; installed arch linux afterwards) too.
(i don't know how to use code tags yet, sorry)
[alexander@alexander-p6634 ~]$ LANG=C aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: CX20585 Analog [CX20585 Analog]
Subdevices: 0/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 1: CX20585 Digital [CX20585 Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
[alexander@alexander-p6634 ~]$ dmesg | grep sound
[ 6.822506] input: HDA Intel PCH HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:1b.0/sound/card0/input10
[ 6.822649] input: HDA Intel PCH Mic as /devices/pci0000:00/0000:00:1b.0/sound/card0/input11
[ 6.822787] input: HDA Intel PCH Headphone as /devices/pci0000:00/0000:00:1b.0/sound/card0/input12
[alexander@alexander-p6634 ~]$ dmesg | grep snd_
[ 6.576589] snd_hda_intel 0000:00:1b.0: irq 47 for MSI/MSI-X
[alexander@alexander-p6634 ~]$ lsmod | grep snd_
snd_hda_codec_hdmi 29298 1
snd_hda_codec_conexant 36191 1
snd_hda_intel 35816 6
snd_hda_codec 145920 3 snd_hda_codec_hdmi,snd_hda_codec_conexant,snd_hda_intel
snd_hwdep 6364 1 snd_hda_codec
snd_pcm 76860 4 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel
snd_page_alloc 7330 2 snd_pcm,snd_hda_intel
snd_timer 18687 1 snd_pcm
snd 58893 18 snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_hda_codec_conexant,snd_pcm,snd_hda_codec,snd_hda_intel
Maybe it will be gone when I'll do some reboots, there are often problems without any cause (that makes sense, at least; today my laptop died for 3 hours, i couldn't turn it on anymore, and when i took it to a repair service, when i explained it to the guy he tried pressing the power button and it just worked again)

It went away for a while and came back right now, I don't know how to reproduce it, I don't know the cause. This is really bothersome.
The built-in speakers work normally, by the way.

Mono sound unchecking itself after reboot

Hello all,
I primarily use headphones for sound and as I have near-total hearing loss on one side I use the mono sound option in Universal Access. Every time I reboot my Mac the setting undoes itself and I have to go back into preferences and recheck it. Is there anything I can do to lock that setting into place?
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Try trashing the file ~/Library/Preferences/com.apple.universalaccess.plist (when System Preferences is not active, of course), then resetting your Universal Access preferences.
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Can I change mono sound into sterio sound

I have been working for weeks on 3 hour long DVDs about using PhotoShop Elements and have completed about 2 1/2 hours of shooting. I switched external mikes on my DV camera and when transfering to iMovie 6 I discovered that the first 2 1/4 hours were recorded with a mono external mike and only the last 10 minutes is with sterio sound. I was using my mics on my lap top and only plugged in my external speakers today.
I realized the sound was different with the two mics, and now realize 90% was recorded mono. I tried extracting the sound from one scene and then copying it into the second track, but both play out of the left speaker only.
I don't need sterio sound, but is there any way I can have this mono sound track come out of both speakers?
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Matt --
Thanks for your answer. I want to clarify a bit so you and others understand what my problem is and what I am trying to do. Perhaps your answer is the right way to go, but I need to be sure I am clear first because the title to this is a bit misleading.
I am editing footage shot by my Sony DV in iMovie 6. Since I am not facing the camera but it is over my shoulder, I am using an external mike. I have three weeks of shooting and I just discovered that I have been using a monoral mike, Which I did not notice since I was using my lap top speakers. I recently hooked up my external speakers and discovered sound coming from the left speaker only.
As stated, I don't need sterio, but I do need sound from both speakers. Had I known I was using a mono mic, I could have used two mikes and then led the inputs into the sterio input of my camera as I do with wireless mikes when I want sterio, but this has already been recorded.
I have not used Garage Band before but will open it up if this is the best way to go.
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My balance sounds horrible when is at the center ... it only happen when I plug my Headphones... if a move the balance to the left/right i have a mono sound in my headphonesleft/right

My balance sounds horrible when is at the center ... it only happen when I plug my Headphones... if I move the balance to the left/right i have a mono sound in my headphones left/right

I too am experiencing this issue after upgrading to Mavericks. Headphone audio balance seems to always stick to the far right. When moved to the center, it still only outputs sound to the right side. I have to constantly adjust the setting a little to the left of center for both sides to output sound equally.

Compressing audio/video with mono sound

Hey all,
I have a video that has mono sound. On the left channel no sound and on the right channel the sound itself. Now I want to use compressor to compress the video and audio to AppleTV format. When I convert it the sound stays the same.
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Mono Sound after opening an iMovie HD-Project in FC Express HD

I captured HD-Material in iMovie. There it works in stereo. Now i just got mono sound after opening my iMovie HD-Project in FC Express HD. If i play the timeline, the sound of my HD-Clips is mono, all track-settings seamed to be on default mode. If i click one of the clips in the browser-window, i can see and hear the clip in the viewer in stereo. So the clip-material must be okay. Rendering the movie clips and audio clips in the timeline doesn't work. Connecting the clips with the original bin, doesn't work too.
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That's not right. Stereo here means the same sound split between two channels. When you open it into the viewer you see two audio waveforms in one display. They can be different, but they don't have to be. Dual mono means you have two separate tracks with different sound coming out of each speaker. In dual mono you have two separate tabs, one for each track, each of which can be controlled separately and have separate audio. That's the default capture condition for FCE. If you have separate tracks of audio in iMovie, two mono tracks attached to the video, they may not be preserved when they come into FCE. Do your clips have two separate, mono tracks of audio in iMovie? What happens to the clip when you open it from the browser into the viewer? Is it two mono tracks, or a stereo pair?

Recent upgrade screwed my arch (mono sound, no screensaver..)

Ok so on my last pacman -Syu my #solved#screensaver stopped working, it is like its almost about to start (the screen fades away) and then back to desktop...#solved#
This one is pretty stupid also.. when I start firefox my graphic card starts to sing like a cricket...
#solved#But the major problem is that I'm having mono sound on EVERY app, i tried amarok and mpplayer, only one speaker plays sound (and one headphone)...#solved#
I'm using gnome, alsa, and im running arch on a vaio fz11z (8400m gt nvidia, intel ich8 family sound card)
Last edited by golfadas (2009-02-27 18:34:47)

mutlu_inek wrote:
golfadas wrote:#solved# [...] #solved#
In general, it is appreciated and customary to post solutions when found so that a forum search actually helps.
sorry about that, on the gnome panel volume applet, open volume control and i had to put the left bar in master up, and restarted arch. At least i think it was that..

Mono sound issue

Hi there,
I made this video last week and spent all weekend editing it in FCP X, which I am completely new to.
I found out after exporting it, that I only had sound in the left channel becuase I have external soundrecording. Because I am new at this, I have later made my entire clip into a compund clip (maybe a newbie mistake?) and therefore it seems like that I cannot go into the audio - channel config. and change it.
What can I do to get audio in both channels on my clip ?
Hope you can help. Thx

Hi
Why not ask in FCP-X forum.
In FCE/P - You have stereo pairs of audio and if one is silent a poor solution is to copy over the other to a x2 mono track.
Yours Bengt W

Bug in Flash? Mono sounds can't seek past first half (and report sound.length wrong)

I'm working on an mp3 player in AS3 and I just discovered
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snaps to the correct value.
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button again (anywhere in the second half of the file), it won't
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is that it has something to do with Mono.
Can anyone help? I can post examples and source code if
necessary. Thank you! --Ben

I'm banging my head because I can't find a solution to make my arch-install detect an audio CD
I assume that you mean the optical drive. I don't see a /dev/sr0 in /dev
Does it show up with lsblk or parted -l?
Looks like it's a LiteOn drive.
You can play an audio CD.
mplayer cdda://
mpv cdda://track[−endtrack][:speed][/device] −−cdrom−device=PATH
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Does the iphone 4 play stereo or mono sound? mines seems to always play through the headphones in mono :/

When i play music through the headphones and through the car stereo it plays sound in mono. I was just wondering if this is what the iphone does or is mines broken?
Thanks

Make sure "mono audio" isnt turned on under: Settings - General - Accessability

Cannot hear headphones in stereo. Feels like mono sounds.

After using this youtube example (https://www.youtube.com/watch?v=hTvJoYnpeRQ) to determine if my headphone is working or not I noticed that I can hear the left channel on the right side of my headphone and the right channel on the left side of my headphone (Essentially, I can hear both channels with just one side of the headphone). This is irritating me as when it comes to some games (Such as Counter-Strike: Global Offensive where listening and determining where noises are coming from), it is crucial to learn where the sources of the audio is coming from. This even happens when I listen to music and I get confused if it's from the left side or the right side of the music when the music I listen to does take advantage of 2+ channels. I have tried it on my old laptop and it can listen to both channels seperately, just fine.
The laptop I am using the HP Envy 15-j058ca and I currently have the latest audio driver on it for 8.1 with the latest Windows updates. Is there something I can do to be able to listen the left and right channels on proper sides instead of hearing it as if it was mono? Thanks in advance!

Please try to update the PC's audio driver if you haven't done so already.
Link:
http://h10025.www1.hp.com/ewfrf/wc/softwareDownloadIndex?softwareitem=ob-124012-1&cc=us&dlc=en&lc=en...
Once installed go to the audio control panel or click on the little sound icon on the bottom right corner of your screen and click on the little Speaker/Headphone Icon above the volume slider.
Once you do that, you will get a window like the one below with General tab highlited.
CLick on the Levels tab and then click on the Balance Button. Move the sliders to check if there is actually an issue with the RIght or Left channels and if the correct channels respond when you move the individual sliders.
Also try with another Headphone.
I'm an HP Employee.
The opinions expressed here are my personal opinions, not of HP.
Click on Thumbs up if my post helped you.
Make it easier for other people to find solutions, by marking an answer “Accept as Solution” if it solves your problem.

Lumia 820 mono sound on headphones!

I got my new Lumia 820 today, and when I tried listening to music using headset the sound was mono, and only came out from the right headphone. The problem isn't in the headphones, since I tried both the Nokia ones that came with the phone and others. They all work just fine on my iPod. Has anybody had the same problem? Any suggestions? I couldn't find settings concerning wether the sound is mono or stereo.

If your using any apple product the sound was never right cause they simply do not work correctly,ensure the headphones are fully inserted.
If i have helped at all a click on the white star below would be nice thanks.
Now using the Lumia 1520

I have mono sound on my iPad

Do in need to replace the speaker? Or bring to any apple store for repair?

Hi stedman1,
Interrestingly enough, I used your recommendation for a similar issue. I actually had to enable "mono" in the accessibility.
The tv show I was watching only had the left channel in the hearphones. So I decided to analyze its content with a video editing software. After extracting the audio from the movie I opened it up with Sound Forge. Surprisingly, it contained 2 channels and *was* therefore a stereo file. I still failed to understand why my iPad played it in mono. Further analysis on the audio revealed that it was "fake" stereo (i.e. a mono channel that is merely duplicated to make a stereo audio content).
I am guessing that the iPad is "clever" enough to detect this and plays it only on one of the output channels. I am using "PlayerXtreme" to watch my videos but no setting in there (sighs).
Enabling "mono" in the accessibility settings is in this case actually replicating the left channel to the right one and at least the 2 speakers of the headset work even though when a door slams on the left of the screen, it appears to be in the middle :-(.
Anyway thanks for your tip! It saved me hours of extracting/modifying/resaving the video with a proper stereo stream for dozens of TV shows!
Manu DJ

Mono Sound

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